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Finding the Fourth Proportional to 250,090.70, 375,206.29 and 100,436.07

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Solution

The fourth proportional to 250,090.70, 375,206.29 and 100,436.07 is: 150,682.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,090.70 : 375,206.29 = 100,436.07 : x
  2. Step 2: Convert to fraction form
    250,090.70/375,206.29 = 100,436.07/x
  3. Step 3: Cross multiply
    250,090.70x = 375,206.29 × 100,436.07
  4. Step 4: Simplify right side
    250,090.70x = 37,684,244,955.79
  5. Step 5: Solve for x
    x = 37,684,244,955.79/250,090.70
  6. Step 6: Final answer
    x = 150,682.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.